How Should U.S. Deal With the Islamic World?

It's often noted that the Islamic world, now in such ferment, is teeming with impressionable young people. The median age in Iraq, for example, is 21.1 years old, compared with 45.3 in Germany.

Here is a fact not so well known. After remaining lofty for years, the birthrate in the Islamic world actually has begun to decline dramatically. Research by Nicholas Eberstadt at the American Enterprise Institute finds the fertility rate has...